Endangered and threatened plants of the United States
By: Edward S. Ayensu and Robert A. DeFilipps, with the assistance of Sam E. Fowler ... [et al.].
Contributors: DeFilipps, Robert A., joint author.; Smithsonian Institution.; Smithsonian Institution.
Publisher: Smithsonian Institution
Published: 1978
Place of publication: Washington
Language: eng
Number of pages: 403
Subjects: Rare plants -- United States.; Plant conservation -- United States.
Notes: Includes bibliographies.
Ed. of 1975, by the Smithsonian Institution, published under title: Report on endangered and threatened plant species of the United States.